[linux-2.6-block.git] / include / linux / lsm_audit.h

/*
 * Common LSM logging functions
 * Heavily borrowed from selinux/avc.h
 *
 * Author : Etienne BASSET  <etienne.basset@ensta.org>
 *
 * All credits to : Stephen Smalley, <sds@epoch.ncsc.mil>
 * All BUGS to : Etienne BASSET  <etienne.basset@ensta.org>
 */
#ifndef _LSM_COMMON_LOGGING_
#define _LSM_COMMON_LOGGING_

#include <linux/stddef.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/kdev_t.h>
#include <linux/spinlock.h>
#include <linux/init.h>
#include <linux/audit.h>
#include <linux/in6.h>
#include <linux/path.h>
#include <linux/key.h>
#include <linux/skbuff.h>
#include <asm/system.h>


/* Auxiliary data to use in generating the audit record. */
struct common_audit_data {
	char    type;
#define LSM_AUDIT_DATA_FS      1
#define LSM_AUDIT_DATA_NET     2
#define LSM_AUDIT_DATA_CAP     3
#define LSM_AUDIT_DATA_IPC     4
#define LSM_AUDIT_DATA_TASK    5
#define LSM_AUDIT_DATA_KEY     6
	struct task_struct *tsk;
	union 	{
		struct {
			struct path path;
			struct inode *inode;
		} fs;
		struct {
			int netif;
			struct sock *sk;
			u16 family;
			__be16 dport;
			__be16 sport;
			union {
				struct {
					__be32 daddr;
					__be32 saddr;
				} v4;
				struct {
					struct in6_addr daddr;
					struct in6_addr saddr;
				} v6;
			} fam;
		} net;
		int cap;
		int ipc_id;
		struct task_struct *tsk;
#ifdef CONFIG_KEYS
		struct {
			key_serial_t key;
			char *key_desc;
		} key_struct;
#endif
	} u;
	/* this union contains LSM specific data */
	union {
#ifdef CONFIG_SECURITY_SMACK
		/* SMACK data */
		struct smack_audit_data {
			const char *function;
			char *subject;
			char *object;
			char *request;
			int result;
		} smack_audit_data;
#endif
#ifdef CONFIG_SECURITY_SELINUX
		/* SELinux data */
		struct {
			u32 ssid;
			u32 tsid;
			u16 tclass;
			u32 requested;
			u32 audited;
			struct av_decision *avd;
			int result;
		} selinux_audit_data;
#endif
	};
	/* these callback will be implemented by a specific LSM */
	void (*lsm_pre_audit)(struct audit_buffer *, void *);
	void (*lsm_post_audit)(struct audit_buffer *, void *);
};

#define v4info fam.v4
#define v6info fam.v6

int ipv4_skb_to_auditdata(struct sk_buff *skb,
		struct common_audit_data *ad, u8 *proto);

int ipv6_skb_to_auditdata(struct sk_buff *skb,
		struct common_audit_data *ad, u8 *proto);

/* Initialize an LSM audit data structure. */
#define COMMON_AUDIT_DATA_INIT(_d, _t) \
	{ memset((_d), 0, sizeof(struct common_audit_data)); \
	 (_d)->type = LSM_AUDIT_DATA_##_t; }

void common_lsm_audit(struct common_audit_data *a);

#endif
Commit	Line	Data
6e837fb1 EB	1	/*
	2	* Common LSM logging functions
	3	* Heavily borrowed from selinux/avc.h
	4	*
	5	* Author : Etienne BASSET <etienne.basset@ensta.org>
	6	*
	7	* All credits to : Stephen Smalley, <sds@epoch.ncsc.mil>
	8	* All BUGS to : Etienne BASSET <etienne.basset@ensta.org>
	9	*/
	10	#ifndef _LSM_COMMON_LOGGING_
	11	#define _LSM_COMMON_LOGGING_
	12
	13	#include <linux/stddef.h>
	14	#include <linux/errno.h>
	15	#include <linux/kernel.h>
	16	#include <linux/kdev_t.h>
	17	#include <linux/spinlock.h>
	18	#include <linux/init.h>
	19	#include <linux/audit.h>
	20	#include <linux/in6.h>
	21	#include <linux/path.h>
	22	#include <linux/key.h>
	23	#include <linux/skbuff.h>
	24	#include <asm/system.h>
	25
	26
	27	/* Auxiliary data to use in generating the audit record. */
	28	struct common_audit_data {
	29	char type;
	30	#define LSM_AUDIT_DATA_FS 1
	31	#define LSM_AUDIT_DATA_NET 2
	32	#define LSM_AUDIT_DATA_CAP 3
	33	#define LSM_AUDIT_DATA_IPC 4
	34	#define LSM_AUDIT_DATA_TASK 5
	35	#define LSM_AUDIT_DATA_KEY 6
	36	struct task_struct *tsk;
	37	union {
	38	struct {
	39	struct path path;
	40	struct inode *inode;
	41	} fs;
	42	struct {
	43	int netif;
	44	struct sock *sk;
	45	u16 family;
	46	__be16 dport;
	47	__be16 sport;
	48	union {
	49	struct {
	50	__be32 daddr;
	51	__be32 saddr;
	52	} v4;
	53	struct {
	54	struct in6_addr daddr;
	55	struct in6_addr saddr;
	56	} v6;
	57	} fam;
	58	} net;
	59	int cap;
	60	int ipc_id;
	61	struct task_struct *tsk;
	62	#ifdef CONFIG_KEYS
	63	struct {
	64	key_serial_t key;
65	char *key_desc;
66	} key_struct;
67	#endif
68	} u;
6e837fb1 EB	69	/* this union contains LSM specific data */
6e837fb1 EB	70	union {
65c3f0a2	71	#ifdef CONFIG_SECURITY_SMACK
6e837fb1 EB	72	/* SMACK data */
6e837fb1 EB	73	struct smack_audit_data {
ed5215a2	74	const char *function;
6e837fb1 EB	75	char *subject;
	76	char *object;
	77	char *request;
	78	int result;
	79	} smack_audit_data;
65c3f0a2 TL	80	#endif
65c3f0a2 TL	81	#ifdef CONFIG_SECURITY_SELINUX
6e837fb1 EB	82	/* SELinux data */
	83	struct {
	84	u32 ssid;
	85	u32 tsid;
	86	u16 tclass;
	87	u32 requested;
	88	u32 audited;
	89	struct av_decision *avd;
	90	int result;
	91	} selinux_audit_data;
65c3f0a2	92	#endif
d4131ded	93	};
6e837fb1 EB	94	/* these callback will be implemented by a specific LSM */
	95	void (lsm_pre_audit)(struct audit_buffer , void *);
	96	void (lsm_post_audit)(struct audit_buffer , void *);
	97	};
	98
	99	#define v4info fam.v4
	100	#define v6info fam.v6
	101
	102	int ipv4_skb_to_auditdata(struct sk_buff *skb,
	103	struct common_audit_data ad, u8 proto);
	104
	105	int ipv6_skb_to_auditdata(struct sk_buff *skb,
	106	struct common_audit_data ad, u8 proto);
	107
	108	/* Initialize an LSM audit data structure. */
	109	#define COMMON_AUDIT_DATA_INIT(_d, _t) \
	110	{ memset((_d), 0, sizeof(struct common_audit_data)); \
ed5215a2	111	(_d)->type = LSM_AUDIT_DATA_##_t; }
6e837fb1 EB	112
	113	void common_lsm_audit(struct common_audit_data *a);
	114
	115	#endif